| Abbreviation | Definition |
|---|---|
| HS | High Schools |
| HS | Home School |
| HSA | Harlem School of the Arts |
| HSA | High School Assessments |
| HSAC | High School Affiliated Club |
| HSAC | High School of Applied Communication |
| HSAK | Healthy school age kids |
| HSAS | High School of American Studies |
| HSB | High School and Beyond |
| HSB | Home School Building |
| HSBA | Hamburg School of Business Administration |
| HSBH | High School Business Heroes |
| HSC | Healthy Schools Campaign |
| HSC | High School |
| HSC | High School Certificate |
| HSC | High School Cetificate |
| HSC | Home and School Club |
| HSC | Home and School Council |
| HSCA | High School Career Academy |
| HSCCP | High School College Credit Program |